CA1297185C - Circuit d'appareil auditif - Google Patents

Circuit d'appareil auditif

Info

Publication number
CA1297185C
CA1297185C CA000529349A CA529349A CA1297185C CA 1297185 C CA1297185 C CA 1297185C CA 000529349 A CA000529349 A CA 000529349A CA 529349 A CA529349 A CA 529349A CA 1297185 C CA1297185 C CA 1297185C
Authority
CA
Canada
Prior art keywords
signal
receiving
providing
output
microphone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CA000529349A
Other languages
English (en)
Inventor
Richard Brander
James R. Anderson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beltone Electronics Corp
Original Assignee
Beltone Electronics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beltone Electronics Corp filed Critical Beltone Electronics Corp
Priority to CA000616186A priority Critical patent/CA1323924C/fr
Application granted granted Critical
Publication of CA1297185C publication Critical patent/CA1297185C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/56—Modifications of input or output impedances, not otherwise provided for
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/002—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general without controlling loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H03G5/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/35—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using translation techniques
    • H04R25/356—Amplitude, e.g. amplitude shift or compression
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/502—Customised settings for obtaining desired overall acoustical characteristics using analog signal processing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45394—Indexing scheme relating to differential amplifiers the AAC of the dif amp comprising FETs whose sources are not coupled, i.e. the AAC being a pseudo-differential amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/0422—Frequency selective two-port networks using transconductance amplifiers, e.g. gmC filters
    • H03H11/0433—Two integrator loop filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/0422—Frequency selective two-port networks using transconductance amplifiers, e.g. gmC filters
    • H03H11/0472—Current or voltage controlled filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2210/00—Indexing scheme relating to details of tunable filters
    • H03H2210/02—Variable filter component
    • H03H2210/021—Amplifier, e.g. transconductance amplifier
    • H03H2210/023—Tuning of transconductance via tail current source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/30—Monitoring or testing of hearing aids, e.g. functioning, settings, battery power

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)
CA000529349A 1986-03-12 1987-02-10 Circuit d'appareil auditif Expired - Lifetime CA1297185C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000616186A CA1323924C (fr) 1986-03-12 1991-09-30 Circuit de prothese audite

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US838,924 1986-03-12
US06/838,924 US4792977A (en) 1986-03-12 1986-03-12 Hearing aid circuit

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA000616186A Division CA1323924C (fr) 1986-03-12 1991-09-30 Circuit de prothese audite

Publications (1)

Publication Number Publication Date
CA1297185C true CA1297185C (fr) 1992-03-10

Family

ID=25278406

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000529349A Expired - Lifetime CA1297185C (fr) 1986-03-12 1987-02-10 Circuit d'appareil auditif

Country Status (5)

Country Link
US (1) US4792977A (fr)
EP (3) EP0481529A3 (fr)
JP (3) JPS62219897A (fr)
CA (1) CA1297185C (fr)
DK (1) DK124887A (fr)

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US5027410A (en) * 1988-11-10 1991-06-25 Wisconsin Alumni Research Foundation Adaptive, programmable signal processing and filtering for hearing aids
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AT399248B (de) * 1993-09-27 1995-04-25 Viennatone Gmbh Hörgerät
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US5418495A (en) * 1994-05-18 1995-05-23 Elantec Input stage improvement for current feedback amplifiers
US6072885A (en) * 1994-07-08 2000-06-06 Sonic Innovations, Inc. Hearing aid device incorporating signal processing techniques
US8085959B2 (en) 1994-07-08 2011-12-27 Brigham Young University Hearing compensation system incorporating signal processing techniques
FR2727266B1 (fr) * 1994-11-21 1997-01-03 Mixed Silicon Stuctures Dispositif amplificateur analogique a gain commande, et procede d'amplification correspondant
US5822442A (en) * 1995-09-11 1998-10-13 Starkey Labs, Inc. Gain compression amplfier providing a linear compression function
US5862238A (en) * 1995-09-11 1999-01-19 Starkey Laboratories, Inc. Hearing aid having input and output gain compression circuits
US5832097A (en) * 1995-09-19 1998-11-03 Gennum Corporation Multi-channel synchronous companding system
US5578967A (en) * 1995-09-28 1996-11-26 Elantec Circuit compensating for capacitance at inverting input of current feedback amplifier
US5838807A (en) * 1995-10-19 1998-11-17 Mitel Semiconductor, Inc. Trimmable variable compression amplifier for hearing aid
JP2872624B2 (ja) * 1995-11-21 1999-03-17 リオン株式会社 補聴器
DE19546596C2 (de) * 1995-12-13 1997-11-27 Siemens Audiologische Technik Hörgerät mit einem automatischen AGC-Verstärkungsregler (AGC) und mehreren Stellgliedern
US6108431A (en) * 1996-05-01 2000-08-22 Phonak Ag Loudness limiter
US5794187A (en) * 1996-07-16 1998-08-11 Audiological Engineering Corporation Method and apparatus for improving effective signal to noise ratios in hearing aids and other communication systems used in noisy environments without loss of spectral information
DK0836363T3 (da) * 1996-10-01 2003-12-15 Phonak Ag Begrænser for lydindtryk
EP0845921A1 (fr) * 1996-10-23 1998-06-03 Siemens Audiologische Technik GmbH Procédé et circuit pour réguler le volume dans des prothèses auditives numériques
US6044162A (en) * 1996-12-20 2000-03-28 Sonic Innovations, Inc. Digital hearing aid using differential signal representations
DE59813964D1 (de) * 1997-11-12 2007-05-24 Siemens Audiologische Technik Hörgerät und Verfahren zur Einstellung audiologischer/akustischer Parameter
US6201875B1 (en) 1998-03-17 2001-03-13 Sonic Innovations, Inc. Hearing aid fitting system
US6160243A (en) * 1998-09-25 2000-12-12 Redwood Microsystems, Inc. Apparatus and method for controlling fluid in a micromachined boiler
DE59902303D1 (de) 1998-12-11 2002-09-12 Siemens Audiologische Technik Verfahren zur erzeugung konstanter schalldruckpegel in hörgeräten sowie hörgerät
US6408318B1 (en) 1999-04-05 2002-06-18 Xiaoling Fang Multiple stage decimation filter
US6748089B1 (en) 2000-10-17 2004-06-08 Sonic Innovations, Inc. Switch responsive to an audio cue
AUPR438601A0 (en) * 2001-04-11 2001-05-17 Cochlear Limited Variable sensitivity control for a cochlear implant
EP1532842B1 (fr) 2002-07-10 2013-08-14 Oticon A/S Appareil d'aide auditive ou dispositif d'aide similaire et procede de production d'un dispositif d'aide auditive
DE602004005234T2 (de) * 2003-07-07 2007-11-08 Koninklijke Philips Electronics N.V. System und verfahren zur signalverarbeitung
DK176789B1 (da) * 2005-03-23 2009-08-31 Gn Resound As Et höreapparat med en strömbegrænser
US7488526B2 (en) 2005-11-22 2009-02-10 Ricoh Company, Ltd. Sputtering target and manufacturing method therefor, and optical recording medium and manufacturing method therefor
US20080025530A1 (en) * 2006-07-26 2008-01-31 Sony Ericsson Mobile Communications Ab Method and apparatus for normalizing sound playback loudness
WO2008116264A1 (fr) 2007-03-26 2008-10-02 Cochlear Limited Réduction de bruit dans les prothèses auditives
US8787606B2 (en) 2009-04-15 2014-07-22 Garth William Gobeli Electronically compensated micro-speakers
WO2011059924A1 (fr) * 2009-11-13 2011-05-19 Advanced Bionics, Llc Accessoire adaptateur de système d'implant cochléaire offrant à la fois une entrée de microphone t-mic et une entrée audio extérieure
US8081031B2 (en) * 2010-01-14 2011-12-20 Integrated Device Technology, Inc. Equalization system with stabilized peaking gain for a communication system
JP5822502B2 (ja) 2011-03-29 2015-11-24 三菱重工業株式会社 宇宙機
GB201114915D0 (en) * 2011-08-30 2011-10-12 Limitear Ltd Hearing dose management
TWI489773B (zh) * 2011-09-08 2015-06-21 Wistron Corp Dynamic audio amplifier circuit and method thereof
US9313590B1 (en) 2012-04-11 2016-04-12 Envoy Medical Corporation Hearing aid amplifier having feed forward bias control based on signal amplitude and frequency for reduced power consumption
CN112904931B (zh) * 2021-01-15 2022-07-01 北京智芯微电子科技有限公司 电压电流转换电路及集成电路芯片

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Also Published As

Publication number Publication date
US4792977A (en) 1988-12-20
DK124887A (da) 1987-09-13
JPH0242900A (ja) 1990-02-13
JPH0553440B2 (fr) 1993-08-10
JPS62219897A (ja) 1987-09-28
EP0237203A3 (fr) 1989-11-29
EP0481529A3 (en) 1992-07-22
EP0481528A3 (en) 1992-07-22
EP0237203A2 (fr) 1987-09-16
DK124887D0 (da) 1987-03-11
EP0481529A2 (fr) 1992-04-22
EP0481528A2 (fr) 1992-04-22
JPH0242899A (ja) 1990-02-13
JPH0667038B2 (ja) 1994-08-24

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Legal Events

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